Pump



June 9, 1931. ca. w. BLEDSOE ET AL PUMP Filed Jan. 9, 1930 2 Sheets-Sheet l G Inventors W jig/Q C fll encer gzm A iiorney June 9, 1931. G. w. BLEDSOE ET AL 1,808,745

PUMP I Filed Jan. 9, 1950 2 Sheets-Sheet 2 7 Bywm A ttorr'ley Patented June 9, 1931 nm'ran stares ATEZNT. OFFICE GEORGE WASHINGTON BLEDSOIEL' WILLIAM S.. LLOYD, AND CARL DON YENCERgOF EL IPASO, TEXAS PUMP Application mammar 9, 1930. Serial lib/418,632.

This invention relates to a simple cylinder pump to be used in connection with pumping of water or other liquids, to be used and set underground and under the liquid in the well.

more provide a pump that will not lock with sand because the sand will travel through the outlet pipe before it will cause the locking of the parts. 1

Further objects of the invention are to provide, in a manner as hereinafter set forth, a

device of the character referred to, that is strong, compact and durable, very simple in its method of assembly, thoroughly reliable for its intended purpose, requiring very little effort to use the same, that may be operated by hand or a prime mover, that is comparatively inexpensive to manufacture and operate.

With the foregoing and other objects in view, the invention consists of a careful construction, combination and arrangement of parts, as will be hereinafter more specifically described and illustrated in the accompanying drawings, wherein is disclosed an embodiment of the invention, but it is to be understood that changes, variations and modifications, may be resorted to without departing from the spirit of the claim hereto appended.

In the drawings wherein like reference characters indicate corresponding parts throughout the several views Figure 1 is aside elevation of the pump in accordance with the present invention,

Fig. 2 is a vertical section in detail, thereof,

Fig. 3 is a horizontal section taken substantially on the line 33 of Fig. 1 and looking in the direction of the arrow.

Referring to the drawings in detail, 5 indicates generally, a segmental shaped casing or union formed with an interior U-shaped passage, 8. base that is adapted to be vertically supported below the level of the liquid in the well on a tubular support 6, the bottom of which rests upon the floor of the well. 7

The segmental casing forms a The upper end of the support 6 is peripherally threaded to receive a depending, circumferentially threadd boss 7 that depends from the lower end of the base 5.

The top or chorded face of the base 5 is formed with two peripherally threaded openings, 9 and 10 and the opening 9 communicates with one leg 11 while the opening 10 communicates with the other leg 12 of theU- shaped passage 8. Where the'leg 12 of the passage merges with the peripherally threaded opening, the walls about thepassage are formed with a valve seat13, upon which rests a ball check valve 14. V V i The lower end of a cylinderr15 is threadedly connected tothe opening9 and'supported vertically by the casing or base 9; A tenductor pipe 16 of materially less diameter than the cylinder is threadably connected at its lower end to the peripherally threaded opening end and is supported on the base 5. Thelower end of the cylinder 15 communr crates with the legs 11 and passage 8, while the lower end of the conductor 15 communicates with "the leg12 of the'passage. The conductor 15 extends to the top of the well and forms the outlet of the pump Spaced above the valve seat 13, are aair of radially disposed crOssedbarslZ, 18, t e ends of which are anchored to the walls of the conductor pipe' 16, and these" bars form a in the bottom of the Welland it is formed- 7 with a plurality of radial openings 19 above the highest point in the stroke of the piston to be presently described. 7

A hollowpiston 20 is slidably mountedfor vertical reciprocation in the cylinder 15, and

is formed with a plurality ofvertically spaced grooves 21 about its periphery; inwhi'c-h are seated leathergasket rings 22. The piston 20 is'formed with a solid cap 23 threaded socket24 to receive the 'lower end of the operating or sucker rod 25 thatextends through the top of the ground, and

in which therezis counter-sunk a peripherally I may be connected to a hand pump or other operating means. f

The top 23 is inset with respect to the side walls of the piston, and on the tapered shoulder 26, there are formed a plurality of radially inclining openings 27 that form a communication between the walls of the-cylinder and the hollow interior '28 of the pistons. Q The bottom of the piston is formed with an upstanding hollow, spider 29 formed with a substantially frusto-conical shaped, vertically disposed passage 30. The spider 29 is formed with a plurality of radially inclined openings 31 that form a communication with the hollow interior 28 and the passage 30.

A'valve stem 32 extends through the passage and is peripherally threaded as at 38. on its upper end, so that it extends into the hollow interior 28 of the piston. Threadably engaged on the projecting end 33 are a pair of nuts 34 that are adapted to rest upon the upper face of the spider 29, and form a water-tight connection with respect to the passage 30. V

The valve stem 32 is applied through the passage 30 and a valve 35 having a, beveled peripheral edge is adapted to seat in the frustum portion of the passage 30 and on the down stroke of the piston. V

of thebase 5. At the end of the stroke of the piston 20, which is below the openings 19 in the cylinder, the check valve 35 closes on the'downward stroke, whereupon the base of the piston 20 acts as a plunger for the water through the leg 12 of the base, and into the conductor pipe 16 through the surface of the earth.

It requires very little energy on the part of 1 the operator on the down'stroke of the piston,

since the weight on the rod 25 will almost be sufficient to force the water through the conductor 15.

From the drawings, it will be evident that the passage 8 diminishes in area from open- 7 ing 0 to the openings-10.

It is to be understood that by describing in detail herein any particular form of the invention, structure, orarrangement, it is not intended to limit the invention beyond the terms of the claim, or the requirements of the prior art.

- Having thuszdescribed ourinvention, what we claim as new is A pump. of the character described com-f prising an elongated, vertically disposed casing, a hollow piston mounted for reciprocationin' the casing, an integral tapered pro-- jection extending upwardly in the piston from the lower end thereof and terminating tion providing a substantially conical recess in the lower portion of the piston, the recess constituting a valveseat, the projection being still further provided with a plurality of circuinferentially spaced passages in intermediate portions establishing communication between the conical recess and the in terior of the piston, a reciprocating check valve engageable on the seat to control the passage of fluid from the casing intothe piston through the recess and passages, a threaded stem on the valve extending slidably through the opening in the projection, a nut threaded for adjustment on the stem and engageable on the upper end of the projection for limiting the opening movement of the valve, the piston being provided with fluid outlet openings in its upper portion.

In testimony whereofweaffix our signatures. GEORGE WASHINGTON BLEDSOE- WILLIAM S. LLOYD. CARL DON YENCER- 

